Clamp



G. M. DEANE.

CLAMP.

APPLICATION FILED JAN-12,1921.

WITIUFSES IIIIVEAITOR o Granvzlle M Deane,

CLAMP.

Application filed January 12, 1921.

To all whom it may concern: v

Be it known that I, GRANVILLE M. DEANE, a citizen of the United States,and a resident of Dallas, in the county of Dallas and State of 'Ierashave invented certain new and useful Improvements in Clamps, of whichthe following is a specification.

My invention is an improvement in clamps, and has for its object toprovide a device of the character sjgiecified especially adapted for useby chiropractics in the treatment of spinal troubles for adjusting thevertebra with respect to each other.

In the drawings:

Figure l is a perspective View showing the improved clamp and the mannerof using the same,

Figure 2 is a front view,

Figure 3 is a view looking at the engaging ends of the clamping jawsFigure 4. is a section on the line 4i of Figure 3,

Figure 5 is a perspective view of one end of the pivot screw.

In the present embodiment of the inven tion, a pair of handle members 1and 2 is provided, each having at one end a laterally extending jaw 3and 4- respectively. The jaws 3 and 4 extend at approximately rightangles with respect to the handles as clearly shown in Figure 2, and thehandles are pivotally connected at the junction oi the jaws therewith.

This connection is by means of pin 5 which is provided at one end with ahead 6, and near each end with an annularly re duced portion 7. This pinis threaded at the end remote from the head for engaging the handlemembers the pin passing through openings extending transversely of thehandle members near the junction of the arms 8 and t tierewith, and aset screw 8 is threaded through each handle member into engagement withthe adjacent annular Specification of Letters Patent.

i-atented Aug. 8, 1922.

Serial No. 436,767.

groove 7 of the pin to prevent disengagement of the parts.

A cushion or pad is connected with each gripping jaw on the engagingfaces thereof. Each of these cushions or pads indicated at 9 is ofsuitable cushioning material as for instance rubber, and each pad isheld on the gripping jaw by means of substantially rectangular framemembers 10, the said frame members engaging the pads. and the jaws, andbeing riveted to both Preferably the cushions or pads are slightlychannelshaped, as indicated in Figures 1 and F2. The recess orlongitudinal channel snugly receives the jaws.

In operatiom the gripping jaws are ongaged with opposite sides of thespinal coiumn, as shown in Figure 1, one jaw being engaged with thatvertebra '11 which is to be adjusted, while the other is engaged with anadjacent vertebra. a/Vhen now the handles are pressed toward each other,the displaced vertebra will be moved into place.

I claim;

1. A device of the character specified, comprising a pair of handlemembers each having at one end. an angular j aw, a rod on which the twohandle members are pivoted alongside each other, the jaw of one handlemember being spaced further away from the pivoted pin than the aw ot theother handle member for the purpose specified, and cushioning pads onthe engaging faces of the jaws.

2. A device of the character specified, comprising a pair of handlemembers each having at one end an angular jaw, a rod on which the twohandle members are pivoted alongside each other, the jaw of one handlemember being spaced further away from the pivot pin than the jaw of theother handle member for the purpose specified GRANVILLE MAY DFJriNE.

